... reasonable price 3. No noise, high efficiency NOVO's Sprocket chain:1. Material: Aluminium, Cast Iron, Steel.2. Surface ... anodized, Nitriding, Dichromate.3. Teeth Number is from 9 to 216.Specifications1.high quality and most competitive in European market ... we manufacture and where we sell:timing belt pulleys,locking assemblies,torque limiter, gear,couplings,shaft,gears,sprockets andprocessing with ...